TSL2583 datasheet(21/32 Pages) TAOS

21 / 32 page

TSL2581, TSL2583

LIGHT-TO-DIGITAL CONVERTER

TAOS134 − MARCH 2011

The LUMENOLOGY

r Company

E 2011, TAOS Inc.

www.taosinc.com

//****************************************************************************

// THIS CODE AND INFORMATION IS PROVIDED ”AS IS” WITHOUT WARRANTY OF ANY

// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE

// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR

// PURPOSE.

// Module Name:

// lux.cpp

//****************************************************************************

#define LUX_SCALE 16 // scale by 2^16

#define RATIO_SCALE 9 // scale ratio by 2^9

//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−

// Integration time scaling factors

//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−

#define CH_SCALE 16 // scale channel values by 2^16

#define NOM_INTEG_CYCLE 148 // Nominal 400 ms integration.

See Timing Register

//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−

// Gain scaling factors

//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−

#define CH0GAIN128X 107 // 128X gain scalar for Ch0

#define CH1GAIN128X 115 // 128X gain scalar for Ch1

//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−

// FN Package coefficients

//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−

// For Ch1/Ch0=0.00 to 0.30:

Lux=0.130*Ch0−0.240*Ch1

// For Ch1/Ch0=0.30 to 0.38:

Lux=0.1649*Ch0−0.3562*Ch1

// For Ch1/Ch0=0.38 to 0.45:

Lux=0.0974*Ch0−0.1786*Ch1

// For Ch1/Ch0=0.45 to 0.54:

Lux=0.062*Ch0−0.10*Ch1

// For Ch1/Ch0>0.54:

Lux/Ch0=0

//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−

#define K1C 0x009A // 0.30 * 2^RATIO_SCALE

#define B1C 0x2148 // 0.130 * 2^LUX_SCALE

#define M1C 0x3d71 // 0.240 * 2^LUX_SCALE

#define K2C 0x00c3 // 0.38 * 2^RATIO_SCALE

#define B2C 0x2a37 // 0.1649 * 2^LUX_SCALE

#define M2C 0x5b30 // 0.3562 * 2^LUX_SCALE

#define K3C 0x00e6 // 0.45 * 2^RATIO_SCALE

#define B3C 0x18ef // 0.0974 * 2^LUX_SCALE

#define M3C 0x2db9 // 0.1786 * 2^LUX_SCALE

#define K4C 0x0114 // 0.54 * 2^RATIO_SCALE

#define B4C 0x0fdf // 0.062 * 2^LUX_SCALE

#define M4C 0x199a // 0.10 * 2^LUX_SCALE

#define K5C 0x0114 // 0.54 * 2^RATIO_SCALE

#define B5C 0x0000 // 0.00000 * 2^LUX_SCALE

#define M5C 0x0000 // 0.00000 * 2^LUX_SCALE

TSL2583 数据表(PDF) 21 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS

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